Add support for Azure OpenAI (#495)

types/openai.ts

@@ -1,3 +1,5 @@
+import { OPENAI_API_TYPE } from '../utils/app/const';
+
 export interface OpenAIModel {
   id: string;
   name: string;
@@ -7,7 +9,9 @@ export interface OpenAIModel {
 
 export enum OpenAIModelID {
   GPT_3_5 = 'gpt-3.5-turbo',
+  GPT_3_5_AZ = 'gpt-35-turbo',
   GPT_4 = 'gpt-4',
+  GPT_4_32K = 'gpt-4-32k',
 }
 
 // in case the `DEFAULT_MODEL` environment variable is not set or set to an unsupported model
@@ -20,10 +24,22 @@ export const OpenAIModels: Record<OpenAIModelID, OpenAIModel> = {
     maxLength: 12000,
     tokenLimit: 4000,
   },
+  [OpenAIModelID.GPT_3_5_AZ]: {
+    id: OpenAIModelID.GPT_3_5_AZ,
+    name: 'GPT-3.5',
+    maxLength: 12000,
+    tokenLimit: 4000,
+  },
   [OpenAIModelID.GPT_4]: {
     id: OpenAIModelID.GPT_4,
     name: 'GPT-4',
     maxLength: 24000,
     tokenLimit: 8000,
   },
+  [OpenAIModelID.GPT_4_32K]: {
+    id: OpenAIModelID.GPT_4_32K,
+    name: 'GPT-4-32K',
+    maxLength: 96000,
+    tokenLimit: 32000,
+  },
 };